That has always been the case, it is mostly FOSS circles that argue about APIs.
Game developers create a RHI (rendering hardware interface) like discussed on the article, and go on with game development.
Because the greatest innovation thus far has been ray tracing and mesh shaders, and still they are largely ignored, so why keep on pushing forward?
I disagree that ray tracing and mesh shaders are largely ignored - at least within AAA game engines they are leaned on quite a lot. Particularly ray tracing.